(organic chemistry) The carboxylic acid 3-(2-hydroxyphenyl)propanoic acid present in melilot

(organic chemistry) A complex organic acid, 2,5-dihydroxy-3,6-dinitrocyclohexa-2,5-diene-1,4-dione, produced by the action of nitrous acid on hydroquinone

(organic chemistry, obsolete) An acid found in rhubarb.

(organic chemistry) A toxin obtained from the anemone, or from anemonin.

(chemistry) An acid derived from tampicine.

(chemistry, obsolete) An acid which is the chief constituent of common resin.

(organic chemistry) abietic acid

(chemistry) An acid compound of platinous cyanide and hydrocyanic acid, obtained as a red crystalline substance.

(chemistry) A hypothetical sulphacid analogous to arsenic acid, known only in its salts.

(organic chemistry) The carobxylic acid 4-hydroxy-2,5-dioxoimidazolidine-4-carboxylic acid obtained by the hydrolysis of alloxan